Yes and no. Yes because that is the year you two are learning to adjust to the new "lifestyle". Sometimes the honeymoon produces a baby so pregnancy and newborn hood play a roll in the difficulty. Sometimes its the added expenses to a "fixed" income. Or its harder then one spouse thought it would be. Or maybe when you finally bought the cow, the cow quit producing milk! (That could be taken many different ways! Lol)
Sometimes the first year is the most glorious year! The honeymoon is not "over." The newness and thrill of finally being married encompasses you. Your life has just begun together.
For some people the hardest year is the 7th year due to the ever dreaded urban legend of the "seven year itch."
And yet for others it is a much later year when trials in life happens. Life isn't always cupcakes and rainbows. There is disease, sickness and getting older, accidents, deaths of loved ones, job loss/change, retirement, disabilities, mental health issues, financial problems is a biggie!
What ever happens, whether the hard times are early on or later on, cling tight to one another. Persevere. Look for the light at the end of the tunnel. Know that the night can not last forever for tomorrow brings a new day. You are making history together. ☺